/Engine/Source/Runtime/AIModule/Classes/BehaviorTree/Composites/BTComposite_SimpleParallel.h
Simple Parallel composite node. Allows for running two children: one which must be a single task node (with optional decorators), and the other of which can be a complete subtree.
class UBTComposite_SimpleParallel : public [UBTCompositeNode](API\Runtime\AIModule\BehaviorTree\UBTCompositeNode)
TEnumAsByte<EB...
FinishMode
How background tree should be handled when main task finishes execution